/*   Copyright 2010 Jonathan Wagner
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package com.alienos.collide.bounds;

import com.alienos.collide.math.Vector3;

public abstract class BoundingVolume {

    public abstract boolean intersects(BoundingVolume v);

    public abstract boolean intersects(BoundingSphere sphere);

    public abstract boolean intersects(BoundingBox box);

    public abstract boolean contains(Vector3 point);

    public abstract Vector3 getCenter();

    boolean intersectSphereAABB(BoundingSphere s, BoundingBox b) {

        Vector3 center = b.getCenter();
        Vector3 halfExtents = b.getHalfExtents();

        if (Math.abs(center.getX() - s.getCenter().getX()) < s.getRadius() + halfExtents.getX()
                && Math.abs(center.getY() - s.getCenter().getY()) < s.getRadius() + halfExtents.getY()
                && Math.abs(center.getZ() - s.getCenter().getZ()) < s.getRadius() + halfExtents.getZ()) {
            return true;
        }
        return false;

    }

}
